Sample mean breaking strength-null-alternative hypotheses

Reference no: EM1393216

The director of manufacturing at a clothing factory needs to determine whether a new machine is producing a particular type of cloth according to the manufacturer's specifications, which indicate that the cloth has a mean breaking strength of 70 pounds. A sample of 49 pieces of cloth reveals a sample mean breaking strength of 69.1 pounds. State the null and alternative hypotheses.

Reference no: EM1393216

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